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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A000366 Genocchi numbers of second kind (A005439) divided by 2^(n-1).

Table of values

n a(n)
1 1
2 1
3 2
4 7
5 38
6 295
7 3098
8 42271
9 726734
10 15366679
11 391888514
12 11860602415
13 420258768950
14 17233254330343
15 809698074358250
16 43212125903877439
17 2599512037272630686
18 175079893678534943287
19 13122303354155987156306
20 1088559958829010054171343
21 99456043127935948731527942

List of values

[1, 1, 2, 7, 38, 295, 3098, 42271, 726734, 15366679, 391888514, 11860602415, 420258768950, 17233254330343, 809698074358250, 43212125903877439, 2599512037272630686, 175079893678534943287, 13122303354155987156306, 1088559958829010054171343, 99456043127935948731527942]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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